Hard-to-Find Fastener 014973241704 Fine Finished Hex Nuts, 1/4-28, Piece-100 Diameter: 1/4 inch Material: Steel Finish: Zinc Driver Type: 7/16 wrench Thread Type: 28 (fine) Diameter: 1/4" Material: Steel Finish: Zinc Driver Type: 7/16 Wrench Thread Type: 28 (Fine)